- Definitions|1
- Thesaurus|427
- Abbreviations|0
| crackbrained | |
| crackpot | |
| disordered(adjective, sane) | |
| distraught(adjective, sane) | |
| flaky(adjective, simple, silly, foolish, crazy) | |
| foolish(adjective, simple, silly, crazy, mad) | |
| inane(adjective, simple, silly, foolish, unsound) | |
| neurotic(adjective, crazy, cuckoo, queer) | |
| off(adjective, sane) | |
| psycho(silly, foolish, crazy, mad, insane) | |
| ridiculous(adjective, simple, silly, foolish, unsound) | |
| screwball(adjective, silly, foolish, crazy, mad) | |
| silly(adjective, simple, foolish, crazy, mad) | |
| unsound(adjective, sane) | |
| unzipped(adjective, slang, crazy, mad) | |
| absurd(adjective, simple, silly, foolish, crazy) | |
| bats in the belfry(expression, idiom, silly, foolish, mad) | |
| berserk(adjective, wild, silly, foolish, crazy) | |
| cockeyed(adjective, slang, crazy, mad) | |
| crack-brained |
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| APA | Smart Define. (2015). bonkers thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/bonkers/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "bonkers thesaurus" https://smartdefine.org/bonkers/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, bonkers thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/bonkers/thesaurus/synonyms>. |
| MLA | Smart Define. "bonkers thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/bonkers/thesaurus/synonyms> |